锻压技术

空心圆柱斜齿轮正挤压数值模拟研究

英文标题：Numerical simulation investigation on forward extrusion process of hollow cylindrical helical gear

作者：俞德哲王新云金俊松李建军夏巨谌

关键词：空心圆柱斜齿轮正挤压数值模拟

分类号：TG376

出版年,卷(期):页码：2013,38(2):147-150

摘要：

针对空心圆柱斜齿轮的几何特点，利用有限元软件Deform-3D对其闭式模锻工艺和空心坯料正挤压工艺进行模拟分析；利用有限元软件模拟在不同凹模入模角下的正挤压成形过程。结果表明：采用正挤压工艺比闭式模锻更合理;当凹模入模角为80°左右时，可得到几何形状满意的齿轮锻件，成形效果最好，适合空心斜齿轮的正挤压。该研究结果对空心圆柱斜齿轮精锻成形工艺的应用有一定的参考价值。

According to the geometry feature of hollow cylindrical helical gear, the closed die forging with inside relief and forward extrusion process of hollow billet were investigated using numerical simulation software Deform-3D. The effect of die entering angle on the forward extrusion process was also studied. The results show that forward extrusion process is more reasonable compared to the closed die forging scheme by analyzing the forging load and profile accuracy. The best entering angle of die suitable for the forging of hollow helical gear is 80°, at which the filling of die cavity is perfect and the satisfied teeth shape can be obtained. The study could provide reference for the further study of precision forging process for hollow cylindrical helical gear.

基金项目：

国家科技重大专项资助项目（2011ZX04016-051）

参考文献：

［1］李晓冬, 王岗超, 石文超, 等. 圆柱斜齿轮成形及脱模工艺研究[J]. 精密成形工程, 2010, 2(6): 10-12.
［2］李元洪, 刘华, 刘丹, 等. 斜齿圆柱齿轮冷精确成形数值模拟研究[J]. 机械传动, 2010, 34(3): 1-3.
［3］李晓冬, 薛克敏, 周结魁, 等. 圆柱斜齿轮精锻成形数值模拟与试验研究[J]. 塑性工程学报, 2011, 18(2): 24-27.
［4］薛克敏, 李晓冬, 李萍, 等. 圆柱斜齿轮浮动凹模冷挤压成形仿真与实验研究[J]. 中国机械工程, 2012, 23(4): 464-468.
［5］陈伟, 陈晖, 李名尧. 不同凹模入模角对直齿圆柱齿轮挤压成形的影响[J]. 铸造技术, 2011, 32(1): 100-103.
［6］李更新, 杨永顺. 圆柱直齿轮的温挤压数值模拟及凹模改良[J]. 河南科技大学学报:自然科学版, 2004, 25(2), 5-8.
［7］吕炎. 精密塑性体积成形技术[M]. 北京: 国防工业出版社, 2003.
［8］Alves M L, Rodrigues J M, Martins P A. Cold forging of gears: experimental and theoretical investigation[J]. Finite Elements in Analysis and Design, 2001, 37: 549-558.
［9］Moriguchi I. Cold forging of gears and other complex shapes[J]. Journal of Materials Processing Technology, 1992, 35: 439-450.
［10］Szentmihali V, Lange K, Tronel Y, et al. 3D finiteelement simulation of the cold forging of helical gears[J]. Journal of Materials Processing Technology, 1994, 43(24): 279-291.
［11］Yoshida H, Sawaki Y, Sakaida Y. Shaping of helical gear by two-step cold extrusion[J]. Materials Transactions,2008, 49(5): 1162-1167.

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